Well, i naively thought this thread could be related to symfony
developpment :)
Sorry fo that, i will copy my orignal post to users list.
Do you know a way to copy others posts ?

On 23 sep, 15:46, "[MA]Pascal" <[email protected]> wrote:
> Hi guys,
>
> Interesting discussion but could you please keep this mailing list
> focused on symfony development.
>
> symfony-users or ORM dedicated mailing-list will probably give you
> best answers.
>
> Thank you for you understanding.
>
> [MA]Pascal
>
> On Sep 23, 1:35 pm, nervo <[email protected]> wrote:
>
> > Doctrine simple inheritance give ability to "extend" a base doctrine
> > record.
> > The base doctrine record will get the additionnal columns of its
> > childs, that's a good point.
> > But all the potential additionnal behaviors will be kept by the
> > childs.
> > In my blog exemple, if i have to "extend" the member class, with a
> > photo gallery, a rating system, a shop cart, ..., i will have to deal
> > with a Member object to deal with login/logout stuff, a
> > MemberPhotoGallery object for galleries stuffes, a MemberShop cart for
> > shop cart, ......
> > All of these object being related to the same db entry. What a mess :)
> > And (as i can see, but i maybe wrong) you can't easily get an object
> > by another one.
>
> > Now, that's true, i don't know what about propel and "behaviors"
> > defined by custom schema.
> > Does anybody knows ?
>
> > On 23 sep, 14:47, Tom Boutell <[email protected]> wrote:
>
> > > When I asked about a related subject, it was pointed out to me that
> > > you can use Doctrine simple inheritance to achieve this. The added
> > > columns will also be visible in the parent class, so you are
> > > effectively adding more features to the parent class. Check out simple
> > > inheritance in the Doctrine manual.
>
> > > That will let you add more columns via another plugin. It doesn't let
> > > you add more methods to the sfGuardUser class though (apart from the
> > > magic ones that let you access the new columns). But the .yml thing
> > > for Propel doesn't either, right?
>
> > > On Wed, Sep 23, 2009 at 8:05 AM, nervo <[email protected]> wrote:
>
> > > > Yes i know i can customize doctrine php classes :)
> > > > But it's application related.
>
> > > > The goal is to create a kind of family of plugins, just like legos,
> > > > where a new one can add functionnalities to another one.
> > > > Imagine, let's say, a family of blog plugins.
> > > > One plugin handle member aspects, and another one add a photo gallery
> > > > component (or anything else).
> > > > The member plugin should be "upgraded" to support photo galleries.
> > > > And certainly not by manually moddifying the application models :)
>
> > > > You ask "should this feature be available through some kind of Yml
> > > > file ?".
> > > > The answer is "yes" as symfony already support it, but only with
> > > > propel :)
>
> > > > The real question behind it, is "will symfony support it with
> > > > doctrine ?" (cf. patch #7042), or do we have to think about a plugin
> > > > to handle it.
> > > > In this last case, is my vision of the way i made this plugin is the
> > > > good one, or do you think about someting better/simplier ?
>
> > > > On 23 sep, 11:10, Éric Rogé <[email protected]> wrote:
> > > >> The quick answer is : you already can customize all Doctrine classes -
> > > >> including plugin ones - as much as you want, but you have to do it in
> > > >> php, not in schema.yml.
>
> > > >> Here is how symfony works with models, with the classic BlogPost
> > > >> sample :
> > > >> - First the schema.yml file is parsed and transformed the BlogPost
> > > >> config to an abstract BaseBlogPost.class.php class which contains
> > > >> model definitions methods: setTableDefinition() and setUp()
> > > >> - Then a BlogPost.class.php is created. BlogPost extends BaseBlogPost
> > > >> and this is the class that will be used to generate related form and
> > > >> filter classes.
>
> > > >> The trick is very simple: you just have to extend setTableDefinition()
> > > >> setUp() in the BlogPost class to modify everything you want.
> > > >> You can do everything you want : add, remove or modify options, fields
> > > >> and behavior, the modifications are reported to the related form.
>
> > > >> Of course it also works for plugins. If you want to customize the
> > > >> sfDoctrineGuardPlugin sfGuardUser class, just go in /lib/model/
> > > >> doctrine/sfDoctrineGuardPlugin/sfGuardUser.class.php and extend
> > > >> setTableDefinition() and setUp() methods
>
> > > >> The questions is: should this feature be available through some kind
> > > >> of Yml file ?
> > > >> For me the answer is no, symfony advanced configuration operations
> > > >> should stay in pure Php, the same kind of choice has already be done
> > > >> for form customizations.
> > > >> But the sf documentation could maybe by improved on that point.
>
> > > >> On Sep 22, 12:08 pm, nervo <[email protected]> wrote:
>
> > > >> > Since v1.1, symfony handles a way to distantly customize a db schema.
> > > >> > (seehttp://www.symfony-project.org/book/1_2/17-Extending-Symfony#chapter_...
> > > >> > "New in symfony 1.1").
>
> > > >> > This offers a great way to customize plugins, such as sfGuard.
> > > >> > Unfortunately, this is only available for propel, and not for
> > > >> > doctrine.
>
> > > >> > A ticket with a patch has been openened (http://trac.symfony-
> > > >> > project.org/ticket/7042).
> > > >> > Also, i have seen that symfony 1.3 will handle such ability, but only
> > > >> > by overriding schemas, and not customizing them. I also doubt this
> > > >> > will be usable in plugins. 
> > > >> > (seehttp://www.symfony-project.org/tutorial/1_3/en/upgrade
> > > >> > "Override Doctrine Plugin Schema").
>
> > > >> > Anyway.
> > > >> > In order to obtain a real pluggable system, i feel certain such a 
> > > >> > tool
> > > >> > has to be implemented.
> > > >> > And i found an another approach to achieve it. I'd like to discuss
> > > >> > about it.
>
> > > >> > First, i did'nt find any way to interact with doctrine build tasks,
> > > >> > and make some kind of magic to handle custom schemas before it makes
> > > >> > its job. There is eventually a "command.pre_command" event we could
> > > >> > trap, but, we can't in a plugin 
> > > >> > (seehttp://trac.symfony-project.org/ticket/7185).
>
> > > >> > Second, we can not use the "config/doctrine" directory to store some
> > > >> > files describing custom schemas in it, as doctrine build tasks will
> > > >> > search ALL yml files in ALL subdirectories.
> > > >> > So, let's use "config/doctrine_custom" directory.
>
> > > >> > Then, we use a config handler to handle all  "config/doctrine_custom/
> > > >> > schema.yml" (config handlers does not supports wildcards, so although
> > > >> > we can put any named yaml file in "config/doctrine", we have to 
> > > >> > choose
> > > >> > a single name in our case).
> > > >> > The handler then use the doctrine import & builder classes to 
> > > >> > generate
> > > >> > not records php code, but template php code classes definitions. This
> > > >> > php code appears in the cache, named
> > > >> > "config_doctrine_custom_schema.yml.php", which is include in every
> > > >> > request.
>
> > > >> > Last operation, we create a doctrine template named "Customizable".
> > > >> > Every record acting as "Customizable" try to find a
> > > >> > "Doctrine_Template_Custom_Schema_[componentName]" (this class sit in
> > > >> > "config_doctrine_custom_schema.yml.php" i you followed me :) ) and
> > > >> > finally acted as it.
>
> > > >> > Let's give an example.
>
> > > >> > In a myUserPlugin, for instance, we just declare in our schema :
>
> > > >> > myUser:
> > > >> >   actAs: [Customizable]  #<----- Thats' the point !
> > > >> >   columns:
> > > >> >     name: ...
> > > >> >     password: ....
>
> > > >> > Then, in any other plugin, we create a "config/doctrine_custom/
> > > >> > schema.yml" wich contains :
>
> > > >> > myUser:
> > > >> >   actAs: [Timestampable]
> > > >> >   columns:
> > > >> >     age: ...
> > > >> >     size: ....
>
> > > >> > These customs schemas are merged, and we generate a doctrine template
> > > >> > based on them, standing in cache, which is automatically associated 
> > > >> > to
> > > >> > our main record "myUser", as it act as "Customizable".
> > > >> > Now, "myUser" actas "Timestampable" and got two new columns, "age",
> > > >> > and "size".
>
> > > >> > 'You see the point ?
>
> > > >> > Well, this approach takes me days, but it's works.
> > > >> > You can download an alpha state plugin right there 
> > > >> > :http://tao.nervo.net/nvDoctrineCustomSchemaPlugin.tar.gz
>
> > > >> > But before going further, i'd like to have other developpers
> > > >> > opinions :)
> > > >> > Do you like it ? Have you thought about something better ? Something
> > > >> > simplier ? Something more powerfull ?
>
> > > --
> > > Tom Boutell
> > > P'unk Avenue
> > > 215 755 1330
> > > punkave.com
> > > window.punkave.com
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